net: DialTCP doesn't set TCP keepalive (unlike Dialer.Dial) #49345
Description
What version of Go are you using (go version)?
All current versions apply.
Does this issue reproduce with the latest release?
Yes
What operating system and processor architecture are you using (go env)?
Not platform specific.
What did you do?
Call net.DialTCP().
What did you expect to see?
The default 15s TCP keepalive setting is applied to the connection.
What did you see instead?
TCP keepalive is not enabled.
Merging this section into newTCPConn should solve this disparity between net.Dialer.Dial[Context]() and net.DialTCP().